Message-ID: <43F324CD.1020807@linux.intel.com>
Date: Wed, 15 Feb 2006 20:55:41 +0800
From: bibo mao <bibo_mao@linux.intel.com>
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To: Zhou Yingchao <yingchao.zhou@gmail.com>
CC: linux-kernel@vger.kernel.org
Subject: Re: Fwd: [PATCH] kretprobe instance recycled by parent process
References: <43F3059A.9070601@linux.intel.com>	 <67029b170602141936v69b85832q@mail.gmail.com> <67029b170602141939v4791ac72l@mail.gmail.com>
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Zhou Yingchao wrote:
> 2006/2/15, bibo mao <bibo_mao@linux.intel.com>:
>> When kretprobe probe schedule() function, if probed process exit then
>> schedule() function will never return, so some kretprobe instance will
>> never be recycled. By this patch the parent process will recycle
>> retprobe instance of probed function, there will be no memory leak of
>> kretprobe instance. This patch is based on 2.6.16-rc3.
> 
> Is there any process which can exit without go through the do_exit() path?
> --
When process exits through do_exit() function, it will call schedule() 
function. But if schedule() function is probed by kretprobe, this time 
schedule() function will not return never because process has exited.

bibo,mao
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